DOCSLIB.ORG

A New Locality of the Depressed River Mussel Pseudanodonta Complanata (Rossmässler, 1835) (Bivalvia: Unionidae) in the Wisłok River (Carpathian Mountains)

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
A New Locality of the Depressed River Mussel Pseudanodonta Complanata (Rossmässler, 1835) (Bivalvia: Unionidae) in the Wisłok River (Carpathian Mountains) Folia Malacol. 27(1): 71–74 https://doi.org/10.12657/folmal.027.003 SHORT COMMUNICATION A NEW LOCALITY OF THE DEPRESSED RIVER MUSSEL PSEUDANODONTA COMPLANATA (ROSSMÄSSLER, 1835) (BIVALVIA: UNIONIDAE) IN THE WISŁOK RIVER (CARPATHIAN MOUNTAINS) MACIEJ BONK Institute of Nature Conservation, Polish Academy of Sciences, al. A. Mickiewicza 33, 31-120 Cracow, Poland (e-mail: [email protected]); https://orcid.org/0000-0003-4093-2542 ABSTRACT: This contribution describes two new sites of the depressed river mussel Pseudanodonta complanata (Rossmässler) in the Carpathian Mts. Empty but well preserved shells were found at two sites in the Wisłok River (Krosno and Odrzykoń). These are the second records of the species from the Polish part of the Carpathians. As only empty shells were found, it is unclear whether the species is a constant component of the river fauna of the Carpathians in Poland. KEY WORDS: Pseudanodonta complanata, Unionidae, Carpathians The depressed river mussel Pseudanodonta compla- lower Odra River (zając 2004). As in other union- nata (Rossmässler, 1835) is a large unionid. It can ids, the larvae are parasites of fish including com- be confused with some other members of the fami- mon species such as Gymnocephalus cernua (Linnaeus, ly, especially with Anodonta anatina (Linnaeus, 1758). 1758), Perca fluvia tilis (Linnaeus, 1758), Pungitius The rhomboid-shaped shell is distinctly laterally flat- pungitius (Linnaeus, 1758), Gasterosteus aculeatus tened (hence the species’ name). The colouration is (Linnaeus, 1758) and Salmo trutta fario (Linnaeus, usually greenish-brown. The umbo has a spiny relief 1758) (BERRIE & BOIZE 1985, MCIVOR & ALDRIDGE unlike the similar species of Anodonta occurring in 2007, PIECHOCKI & WAWRZYNIAK-WYDROWSKA Poland (PIECHOCKI & WAWRZYNIAK-WYDROWSKA 2016 and papers cited therein). The depressed riv- 2016). The depressed river mussel is in general a riv- er mussel is generally widespread across European erine species (WOLFF 1968), preferring large rivers countries. Its range includes Germany, the United (PIECHOCKI & WAWRZYNIAK-WYDROWSKA 2016), Kingdom, Sweden, Finland, Austria, Switzerland, however it is also known from stagnant waters such France and the Netherlands (HAAS 1969, MCIVOR as postglacial lakes (StańczykowSka et al. 1983), & ALDRIDGE 2007, LOPES-LIMA et al. 2017). Despite oxbow lakes (JAKUBIK & LEWANDOWSKI 2013) and its relatively wide range, the species is usually rare dam reservoirs (JURKIEWICZ-KARNKOWSKA 1989). (declining in Europe; IUCN 2018) and is listed as In Poland it is regarded as a lowland species, and Vulnerable (VU) in the IUCN Red List (IUCN 2018). only one submontane record from the Carpathians In Poland it is evenly distributed across the low- is known from the Dunajec River near Rożnów lands, however many of the records are considered Reservoir (zając 2004, zając k. pers. comm.). historical and the most recent sites are aggregated Other localities include the Wielkopolska region in relatively small areas, suggesting a highly frag- (KORALEWSKA-BATURA et al. 2010), Masurian mented (meta)population within the country (zając Lakeland (Krutynia River; JAKUBIK & LEWANDOWSKI 2004). The depressed river mussel is also considered 2011, LEWANDOWSKI & JAKUBIK 2014), middle and the rarest unionid species in Poland (PIECHOCKI & Folia Malacologica is funded by the Ministry of Science and Higher Education, Republic of Poland, under agreement no 534/P-DUN/2018 of April 4th, 2018 allocated to the activities for disseminating science: Task 1: Preparation of English versions of publications (sum funded by DUN 12,000 PLN) and Task 2: Digitalisation of publications and scientific monographs to enable their open access in the Internet (sum funded by DUN 11,070 PLN). 72 Maciej Bonk specimens were found, however; in the first site a viable population of the thick-shelled river mussel Unio crassus (Philipsson, 1788) was found, and in Odrzykoń the thick-shelled river mussel and Unio tu- midus (Philipsson, 1788) were present. In both sites, shells of the depressed river mussel were 5+ years old (Fig. 1). The sites represent typical submontane Carpathian rivers (Fig. 2). The river width is 12 m in Krosno and 15 m in Odrzykoń. In both sites the river is ripraped, however parts of the examined sections remain semi-natural or have spontaneously re-natu- Fig. 1. Shell of Pseudanodonta complanata (Rossmässler, ralised. The substratum of the river bed within these 1835) from the Wisłok river in Krosno. Scale bar 10 mm sites consists mostly of stones and gravel, with sand patches and organic matter deposits. Vegetation is WAWRZYNIAK-WYDROWSKA 2016). It is listed in the poor and consists mostly of Potamageton species and Polish Red Data Book of Animals as Endangered water mosses. Despite similar control with simi- (EN; zając 2004) and legally protected. This contri- lar effort of another section of the Wisłok river in bution describes two new sites of the species from Besko and the Sieniawa-Besko Reservoir, no other the Wisłok river (Carpathian Mts). depressed river mussels were found. The mussels were detected incidentally during In Poland, as well as in other parts of its range, crayfish inventories in Carpathian rivers. Fieldwork the depressed river mussel is rare in the mountains was based on visual search at night using torches. or submontane areas. However, it reaches upland On 28.08.2018 and 07.09.2018, two 200 m sections and mountainous regions in Europe (LOPES-LIMA of the Wisłok river were searched. The water level et al. 2017), for example in the Carpathian parts of was low at this time (according to www.pogodyn- the Tisa River in Ukraine (SÁRKÁNY-KISS 1999). The ka.pl), with no disrupting water turbidity. Empty sites described in this study are the second depressed shells were collected and taken for identification. river mussel localities from the Polish part of the Empty shells including specimens with both valves Carpathians. It is uncertain whether the population connected with ligament were found at two sites: in the Wisłok river is stable. Notably, records of emp- Krosno: 49°41'14.25"N, 21°47'6.33"E, 267 m a.s.l., ty shells may indicate a population that is already ex- (three specimens) and Odrzykoń: 49°44'20.86"N, tinct, as shells may be preserved in water for decades. 21°43'20.39"E, 249 m a.s.l. (four specimens). No live Moreover, the presence of the species may be a result Fig. 2. Habitat of Pseudanodonta complanata (Rossmässler, 1835) in the Wisłok river near Krosno Pseudanodonta complanata in the Wisłok River (Carpathian Mountains) 73 of a single, occasional colonisation, as glochidia of the difficult to detect without thorough field surveys; species may be spread by fish. The mussels may have the fieldwork in this study was not aimed at mollusc colonised the Wisłok river naturally and/or by intro- detection and thus the observations remain anecdo- duction of larvae-carrying fish. On the other hand, tal. Further mollusc-oriented investigations of the the depressed river mussel is sensitive to water pol- Wisłok and similar rivers in the Carpathians could lution and low water quality in general (zając 2004, answer the question whether the depressed river PIECHOCKI & WAWRZYNIAK-WYDROWSKA 2016 and mussel is a constant component of the Carpathian papers cited therein) which is a probable reason for fauna. the disappearance of the species from several local- ities in Poland (LewandowSki & StańczykowSka ACKNOWLEDGEMENTS 1975, PIECHOCKI 1981, JURKIEWICZ-KARNKOWSKA 1989, 1998, 2001, LEWANDOWSKI 1991, zając 2004). I would like to thank to Rafał BoBRek for his Thus, the empty shells recorded in the Wisłok may help in field work and to kataRzyna zając for veri- be the consequence of mortality associated with pol- fication of species identification. Studies on crayfish lution episodes. In such case, future colonisation of in the Carpathians were supported by the Institute the area is possible. Adult depressed river mussels of Nature Conservation, Polish Academy of Sciences, live almost entirely buried in the sediments with through its statutory fund and a grant for young sci- only siphons visible. This habit makes the species entists and Ph.D. candidates. REFERENCES BERRIE A. D., BOIZE B. J. 1985. The fish hosts of Unio LEWANDOWSKI K. 1991. Long-term changes in the fauna glochidia in the River Thames. Verhandlungen der of family Unionidae bivalves in the Mikołajskie Lake. Internationalen Vereinigung für Theoretische und Ekologia Polska 39: 265–272. Angewandte Limnologie 22: 2712–2716. LEWANDOWSKI K., JAKUBIK B. 2014. Małże z rodziny skój- HAAS F. 1969. Superfamily Unionacea. Das Tierreich vol. kowatych (Unionidae) w systemie rzeczno-jeziornym 88. Walter de Gruyter & Co., Berlin. Krutyni (Pojezierze Mazurskie). Chrońmy Przyrodę IUCN 2018. The IUCN Red List of threatened species. Ojczystą 70: 423–430. Version 2018-2. Available online at http://www.iucnre- LewandowSki k., StańczykowSka a. 1975. The occur- dlist.org (accessed 17 January 2019). rence and role of bivalves of the family Unionidae in JAKUBIK B., LEWANDOWSKI K. 2011. Molluscs of the Mikołajskie Lake. Ekologia Polska 23: 317–334. Krutynia River (Masurian Lakeland). Folia Malacologica LOPES-LIMA M., SOUSA R., GEIST J., ALDRIDGE D. C., ARAUJO 19: 19–29. https://doi.org/10.2478/v10125-011- R., BERGENGREN J., BESPALAYA Y., BÓDIS E., BURLAKOVA 0003-x L., VAN DAMME D., DOUDA K., FROUFE E., GEORGIEV D., JAKUBIK B., LEWANDOWSKI K. 2013. Malacofauna in ox- GUMPINGER C., KARATAYEV A., KEBAPÇI Ü., KILLEEN I., bow lakes of the Bug River within the Nadbużański LAJTNER J., LARSEN B. M., LAUCERI R., LEGAKIS A., LOIS Landscape Park. Teka Komisji Ochrony i Kształtowania S., LUNDBERG S., MOORKENS E., MOTTE G., NAGEL K., Środowiska Przyrodniczego – OL PAN 10: 132–142. ONDINA P., OUTEIRO A., PAUNOVIC M., PRIÉ, V., VON PRoSchwitz t., RiccaRdi n., Rudzīte M., RudzītiS JURKIEWICZ-KARNKOWSKA E. 1989. Occurence of mollusc M., SchedeR c., Seddon M., ŞeRefLiŞan h., SiMić V., in the littoral zone of the Zegrzyński Reservoir and pre- SOKOLOVA S., STOECKL K., TASKINEN J., TEIXEIRA A., mouth and mouth zones of supplying rivers.
Load more

Recommended publications
  • Invertebrates of the River Foss
    Invertebrates of the River Foss A report for the River Foss Society Illustration s of freshwater mussels from Martin Lister’s Historiae Animalium Angliae, published in 1678. Lister was the first naturalist to record invertebrates from the River Foss. Martin Hammond [email protected] December 2017 Introduction Over 170 aquatic invertebrate taxa have been recorded from the River Foss, mostly identified to species level but a few identified only to genus, family or other level. The majority of data are from Environment Agency sampling stations at Marton Abbey, Lilling Green, Strensall, Huntington Church and Castle Mills for the period 1995 to 2016. Few records are available for the upper Foss, where a considerable number of additional species are likely to be found. For a few groups, especially molluscs, older records are available and these provide valuable insights into changes in the ecology of the river. Archaeological investigations from riverside sites in central York also provide some interesting information about the past fauna of the Foss. For example, examination of deposits at Layerthorpe Bridge has revealed statoblasts of the bryozoan Lophopus crystallinus from several samples of fluvial sediment (statoblasts are pods of cells which allow asexual reproduction). These deposits ranged in age from the Anglo-Scandinavian period to the 19th century (Hall et al, 2000), indicating that Lophopus had a very long history of occupation of the lower Foss. The Crystal Moss-animal, to give its English name, is a colonial invertebrate which is a filter-feeder on microscopic algae and bacteria in nutrient- rich, slow-flowing waters. Although once widespread, the Crystal Moss-animal has declined greatly.
    [Show full text]
  • The Monitoring Handbook of Large Freshwater Mussels
    The thick shelled river mussel (Unio crassus) brings LIFE+ back to rivers [UC4LIFE] Målarmusslans återkomst… ACTION A1 DELIVERABLE: “The Monitoring Handbook” The monitoring handbook of large freshwater mussels Jakob Bergengren1, Ted von Proschwitz2, Stefan Lundberg3, Håkan Söderberg4, Oskar Norrgrann4, Martin Österling5 and Ivan Olsson6 County Administrative Board of 1Jönköping 4Västernorrland and 6Skåne, The Natural History Museum in 2Gothenburg and 3Stockholm, and 5Karlstad university and County Administrative Board of Scania6 Action A.1 Deliverable” The monitoring Handbook” Abstract This handbook will be used as part the Life-project “The thick shelled river mussel (Unio crassus) brings LIFE+ back to rivers” [UC4LIFE] monitoring programme to ensure adequate and consistent sampling strategies and techniques amongst the sampling crew. Naturally, the handbook describes sampling strategies and techniques, not only designated for the LIFE- project, but constitute the basis for mussel sampling generally according to standard protocol. Thus, this handbook is based on results from former studies and experiences by the authors and the results have been published previously in different formats. The handbook demonstrate suitable sampling techniques which will be used to survey variables which include mussel population size, density and individual age/size before and after restoration measures (Actions C.1 and C.3 in this project) at the twelve project sites that are planned for in this project. Also, this handbook is relevant for additional project-actions, such as the planning work (Action A.3), Host-fish mapping (Action C.1), Re-introduction and allocation (Action C.3), including all information activities (Actions D.1 - D.7). 1 Action A.1 Deliverable” The monitoring Handbook” Background and objectives Nine species of mussels from the group ”large freshwater mussels” are currently found in Swedish waters.
    [Show full text]
  • 2017 City of York Biodiversity Action Plan
    CITY OF YORK Local Biodiversity Action Plan 2017 City of York Local Biodiversity Action Plan - Executive Summary What is biodiversity and why is it important? Biodiversity is the variety of all species of plant and animal life on earth, and the places in which they live. Biodiversity has its own intrinsic value but is also provides us with a wide range of essential goods and services such as such as food, fresh water and clean air, natural flood and climate regulation and pollination of crops, but also less obvious services such as benefits to our health and wellbeing and providing a sense of place. We are experiencing global declines in biodiversity, and the goods and services which it provides are consistently undervalued. Efforts to protect and enhance biodiversity need to be significantly increased. The Biodiversity of the City of York The City of York area is a special place not only for its history, buildings and archaeology but also for its wildlife. York Minister is an 800 year old jewel in the historical crown of the city, but we also have our natural gems as well. York supports species and habitats which are of national, regional and local conservation importance including the endangered Tansy Beetle which until 2014 was known only to occur along stretches of the River Ouse around York and Selby; ancient flood meadows of which c.9-10% of the national resource occurs in York; populations of Otters and Water Voles on the River Ouse, River Foss and their tributaries; the country’s most northerly example of extensive lowland heath at Strensall Common; and internationally important populations of wetland birds in the Lower Derwent Valley.
    [Show full text]
  • Towards a Global Phylogeny of Freshwater Mussels
    Molecular Phylogenetics and Evolution 130 (2019) 45–59 Contents lists available at ScienceDirect Molecular Phylogenetics and Evolution journal homepage: www.elsevier.com/locate/ympev Towards a global phylogeny of freshwater mussels (Bivalvia: Unionida): Species delimitation of Chinese taxa, mitochondrial phylogenomics, and T diversification patterns Xiao-Chen Huanga,b,1, Jin-Hui Sua,1, Jie-Xiu Ouyangc, Shan Ouyanga, Chun-Hua Zhoua, ⁎ Xiao-Ping Wua, a School of Life Sciences, Nanchang University, Nanchang 330031, China b Centre for Organismal Studies (COS) Heidelberg, Heidelberg University, 69120 Heidelberg, Germany c Medical Laboratory Education Center, Nanchang University, Nanchang 330031, China ARTICLE INFO ABSTRACT Keywords: The Yangtze River Basin in China is one of the global hotspots of freshwater mussel (order Unionida) diversity DNA barcoding with 68 nominal species. Few studies have tested the validity of these nominal species. Some taxa from the Unionidae Yangtze unionid fauna have not been adequately examined using molecular data and well-positioned phylo- Yangtze River genetically with respect to the global Unionida. We evaluated species boundaries of Chinese freshwater mussels, DUI and disentangled their phylogenetic relationships within the context of the global freshwater mussels based on BAMM the multi-locus data and complete mitochondrial genomes. Moreover, we produced the time-calibrated phylo- Host-attraction geny of Unionida and explored patterns of diversification. COI barcode data suggested the existence of 41 phylogenetic distinct species from our sampled 40 nominal taxa inhabiting the middle and lower reaches of the Yangtze River. Maximum likelihood and Bayesian inference analyses on three loci (COI, 16S, and 28S) and complete mitochondrial genomes showed that the subfamily Unioninae sensu stricto was paraphyletic, and the subfamily Anodontinae should be subsumed under Unioninae.
    [Show full text]
  • Large-Scale Monitoring of Freshwater Bivalves: an Edna Point of View On
    Large-scale monitoring of freshwater bivalves: an eDNA point of view on species distribution and conservation Vincent Pri´e1, Manuel Lopes-Lima2, Pierre Taberlet3, Alice Valentini4, Nicolas Poulet5, Pauline Jean4, Emilie Breugnot5, St´ephanieCouprie5, Ga¨elleJardin5, Nicolas Roset5, Thibault Vigneron5, Florent Lamand5, Olivier Gargominy1, Mathieu Rocle6, and Tony Dejean7 1Museum National d’Histoire Naturelle 2University of Porto 3Universit´eJoseph Fourier 4SPYGEN 5Office Fran¸caisde la Biodiversit´e 6Compagnie Nationale du Rhˆone 7Spygen May 6, 2020 Abstract The analysis of environmental DNA (eDNA) allows efficient surveys of freshwater species and is being increasingly used. However, most studies generally have a limited sampling plan. Because different methods are used by different authors, all the data produced with eDNA cannot be easily pooled together for a global overview. Nevertheless, one of the promising perspectives is the standardization of the methods and protocols, for long-term monitoring, early detection of invasive species, and rare species detection. We here present the biggest dataset using eDNA metabarcoding with standardized methods for freshwater bivalves. Sampling was performed mainly in France, with over 350 localities spread over all major basins. Metabarcoding was performed using two new sets of primers, one for the Unionida and one for the Venerida. The species distributions inferred from eDNA sampling are then compared with those currently known. Results give an insight into the valuable data that eDNA analysis can provide if used at a large scale. Some species were found outside of their known range, especially invasive species but also species of conservation interest. Others were found in a surprisingly low number of localities, although currently considered widespread and of no conservation interest.
    [Show full text]
  • Reproductive Cycle and Strategy of Anodonta Anatina
    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Biblioteca Digital do IPB RESEARCH ARTICLE Reproductive Cycle and Strategy of Anodonta anatina (L., 1758): Notes on Hermaphroditism MARIANA HINZMANN1,2, MANUEL LOPES‐LIMA1,2*, AMILCAR TEIXEIRA3, SIMONE VARANDAS4, RONALDO SOUSA2,5, ANABELA LOPES1,2, ELSA FROUFE2, 1,2 AND JORGE MACHADO 1ICBAS‐UP—Abel Salazar Biomedical Sciences Institute, University of Porto, Porto, Portugal 2CIMAR‐LA/CIIMAR—Centre of Marine and Environmental Research, University of Porto, Porto, Portugal 3CIMO‐ESA‐IPB—Mountain Research Centre, School of Agriculture, Polytechnic Institute of Bragança, Campus de Santa Apolónia, Bragança, Portugal 4CITAB‐UTAD—Centre for Research and Technology of Agro‐Environment and Biological Sciences, University of Trás‐os‐Montes and Alto Douro, Vila Real, Portugal 5CBMA—Centre of Molecular and Environmental Biology, University of Minho, Campus de Gualtar, Braga, Portugal ABSTRACT Freshwater mussels have decreased dramatically in Iberia over the last decades. These animals are responsible for important ecosystem services such as recycling nutrients and improving water clarity. Under this view a better knowledge on the biological features of these animals is extremely important for future conservation and management actions. In this study the reproductive and gametogenic cycle of Anodonta anatina were studied during 2 years in one population as well as the sex ratio and hermaphroditism in six distinct populations, using standard histology. Gametogenesis was continuous in both sexes and germinal epithelium in early stages of development. Gametes were present throughout the reproductive cycle. Oogenesis and spermatogenesis occurred mainly between January and May. Larvae brooding occurred between September and March and main glochidia discharge occurred over a short period (2–3 weeks) in March.
    [Show full text]
  • Invasive Chinese Pond Mussel Sinanodonta Woodiana Threatens Native Mussel Reproduction by Inducing Cross‐Resistance of Host Fish
    Received: 13 June 2016 Revised: 15 November 2016 Accepted: 8 January 2017 DOI 10.1002/aqc.2759 RESEARCH ARTICLE Invasive Chinese pond mussel Sinanodonta woodiana threatens native mussel reproduction by inducing cross‐resistance of host fish Seth W. Donrovich1 | Karel Douda1 | Věra Plechingerová1 | Kateřina Rylková1 | Pavel Horký1 | Ondřej Slavík1 | Huan‐Zhang Liu2 | Martin Reichard3 | Manuel Lopes‐ Lima4,5 | Ronaldo Sousa6 1 Department of Zoology and Fisheries, Czech University of Life Sciences Prague, Prague, Abstract Czech Republic 1. The effects of invasive alien species (IAS) on host–affiliate relationships are often subtle and 2 The Key Lab of Aquatic Biodiversity and remain unnoticed or insufficiently quantified. The global decline of freshwater unionid mussel Conservation, Institute of Hydrobiology, species has been attributed to many causes, but little is known about the interactions of IAS, Chinese Academy of Sciences, Wuhan, China with their complex life cycle, which includes an obligatory parasitic stage (the glochidium) that 3 Institute of Vertebrate Biology, Academy of develops on fishes. Sciences of the Czech Republic, Brno, Czech Republic 2. The capacity of a European freshwater mussel, Anodonta anatina, to develop on its widespread 4 CIBIO/InBIO ‐ Research Center in fish host, Squalius cephalus was tested experimentally, after previous infestations by the IAS, Biodiversity and Genetic Resources, University Sinanodonta (Anodonta) woodiana. The initial attachment of glochidia, the length of the parasitic of Porto, Vairão, Portugal period, and the metamorphosis success rate of A. anatina glochidia were compared among 5 CIIMAR/CIMAR ‐ Interdisciplinary Centre of Marine and Environmental Research, treatments of different priming infestation intensities. University of Porto, Matosinhos, Portugal 3.
    [Show full text]
  • Fouling of European Freshwater Bivalves (Unionidae) by the Invasive Zebra Mussel (Dreissena Polymorpha)
    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Universidade do Minho: RepositoriUM Freshwater Biology (2011) 56, 867–876 doi:10.1111/j.1365-2427.2010.02532.x Fouling of European freshwater bivalves (Unionidae) by the invasive zebra mussel (Dreissena polymorpha) RONALDO SOUSA*,†, FRANCESCA PILOTTO‡ AND DAVID C. ALDRIDGE§ *CBMA – Centre of Molecular and Environmental Biology, Department of Biology, University of Minho, Braga, Portugal †CIMAR-LA ⁄CIIMAR – Centre of Marine and Environmental Research, Porto, Portugal ‡Ecology Unit, Department of Biotechnology and Molecular Sciences, University of Insubria, Varese, Italy §Aquatic Ecology Group, Department of Zoology, University of Cambridge, Cambridge, U.K. SUMMARY 1. The zebra mussel (Dreissena polymorpha) is well known for its invasive success and its ecological and economic impacts. Of particular concern has been the regional extinction of North American freshwater mussels (Order Unionoida) on whose exposed shells the zebra mussels settle. Surprisingly, relatively little attention has been given to the fouling of European unionoids. 2. We investigated interspecific patterns in fouling at six United Kingdom localities between 1998 and 2008. To quantify the effect on two pan-European unionoids (Anodonta anatina and Unio pictorum), we used two measures of physiological status: tissue mass : shell mass and tissue glycogen content. 3. The proportion of fouled mussels increased between 1998 and 2008, reflecting the recent, rapid increase in zebra mussels in the U.K. Anodonta anatina was consistently more heavily fouled than U. pictorum and had a greater surface area of shell exposed in the water column. 4. Fouled mussels had a lower physiological condition than unfouled mussels.
    [Show full text]
  • The Newsletter of the Freshwater Mollusk Conservation Society Volume 12 – Number 2 August 2010
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olume 12, No. 2 http://www.molluskconservation.org August 2010 President’s Message Transitions It’s been an exciting past several months as I, your Executive Committee, and your Board have all worked to help transition FMCS into a new era of member services and support and outward visibility. Specifically, through the dedication of Greg Zimmerman, Heidi Dunn, Andy Roberts, and many others in the Society, coupled with the expertise and of hard work of Sophie Binder with Sophie Binder Designs, we have unveiled our new Society web site and presence at http://www.molluskconservation.org. I encourage every member to visit the site and look around at what we have to offer. There is information there for people wishing to learn more about mollusks, as well as a new members-only section that with time will allow you to pay dues, register for meetings, access newsletters, update your contact information and submit a manuscript for publication in the Society Journal, among others.
    [Show full text]
  • HABITAT ASSOCIATIONS and DETECTABILITY of THREE UNIONID SPECIES ALONG the UPPER SABINE RIVER in EAST TEXAS Jared Dickson University of Texas at Tyler
    University of Texas at Tyler Scholar Works at UT Tyler Biology Theses Biology Spring 5-9-2018 HABITAT ASSOCIATIONS AND DETECTABILITY OF THREE UNIONID SPECIES ALONG THE UPPER SABINE RIVER IN EAST TEXAS Jared Dickson University of Texas at Tyler Follow this and additional works at: https://scholarworks.uttyler.edu/biology_grad Part of the Biology Commons, and the Terrestrial and Aquatic Ecology Commons Recommended Citation Dickson, Jared, "HABITAT ASSOCIATIONS AND DETECTABILITY OF THREE UNIONID SPECIES ALONG THE UPPER SABINE RIVER IN EAST TEXAS" (2018). Biology Theses. Paper 54. http://hdl.handle.net/10950/1166 This Thesis is brought to you for free and open access by the Biology at Scholar Works at UT Tyler. It has been accepted for inclusion in Biology Theses by an authorized administrator of Scholar Works at UT Tyler. For more information, please contact [email protected]. HABITAT ASSOCIATIONS AND DETECTABILITY OF THREE UNIONID SPECIES ALONG THE UPPER SABINE RIVER IN EAST TEXAS By JARED DICKSON A thesis submitted in partial fulfillment Of the requirements for the degree of Masters of Biology Department of Biology Srini Kambhampati, Ph.D., Committee Chair College of Arts and Sciences The University of Texas at Tyler May 2018 The University of Texas at Tyler Tyler, Texas This is to certify that the Master’s Thesis of JARED DICKSON has been approved to the thesis requirement on January 19, 2018 for the Masters of Biology degree Acknowledgements I wish to give thanks to my family for the continued support of my academic endeavors. I want to give special thanks to my wife Kaitlin Dickson for her support and relentless motivation to keep me on task.
    [Show full text]
  • Freshwater Mollusc Assemblages and Habitat Associations in the Danube River Drainage, Hungary
    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Repository of the Academy's Library AQUATIC CONSERVATION: MARINE AND FRESHWATER ECOSYSTEMS Aquatic Conserv: Mar. Freshw. Ecosyst. (2015) Published online in Wiley Online Library (wileyonlinelibrary.com). DOI: 10.1002/aqc.2585 Freshwater mollusc assemblages and habitat associations in the Danube River drainage, Hungary ERIKA BÓDISa,*, BENCE TÓTHa and RONALDO SOUSAb,c aMTA Centre for Ecological Research, Danube Research Institute, Karolina, Budapest, Hungary bInterdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Porto, Portugal cCBMA – Centre of Molecular and Environmental Biology, Department of Biology, University of Minho, Braga, Portugal ABSTRACT 1. Native freshwater mollusc diversity has been declining over the past decades. For developing efficient conservation management plans for molluscs, it is especially important to identify areas with high native biodiversity. 2. The River Danube is one of the most important freshwater ecosystems in Europe and should receive special attention. The main objective of this work was to characterize the composition, diversity and conservation status of freshwater molluscs occurring in the Hungarian Danube River Drainage in five river habitat types (main channel of the Rivers Danube and Tisza, side channels of River Danube, tributaries of Rivers Danube and Tisza). 3. In total, 53 mollusc species were identified including 10 invasive species and 12 species of conservation concern. The main determining factors of mollusc composition were sediment characteristics, current velocity and oxygen content. Nitrate–nitrogen, ammonium–nitrogen, and calcium content also play a key role. 4. Overall, density, species richness and diversity showed significant differences between habitat types.
    [Show full text]
  • Margaritifera Margaritifera
    Aquatic Conservation with Focus on Margaritifera margaritifera Proceedings of the International Conference in Sundsvall, Sweden, 12-14 August, 2009 Lennart Henrikson, Björn Arvidsson and Martin Österling (eds.) Faculty of Social and Life Sciences Biology Karlstad University Studies | 2012:40 Aquatic Conservation with Focus on Margaritifera margaritifera Proceedings of the International Conference in Sundsvall, Sweden, 12-14 August, 2009 Lennart Henrikson, Björn Arvidsson and Martin Österling (eds.) Karlstad University Studies | 2012:40 Aquatic Conservation with Focus on Margaritifera margaritifera - Proceedings of the International Conference in Sundsvall, Sweden, 12-14 August, 2009 Lennart Henrikson, Björn Arvidsson and Martin Österling (eds.) Karlstad University Studies | 2012:40 ISSN 1403-8099 ISBN 978-91-7063-447-5 © The authors Distribution: Karlstad University Faculty of Social and Life Sciences Department of Biology SE-651 88 Karlstad, Sweden +46 54 700 10 00 Print: Universitetstryckeriet, Karlstad 2012 WWW.KAU.SE Contents Preface ........................................................................................................................ 1 The EU LIFE project “The freshwater pearl mussel and its habitats in Sweden” ................................................................................................................. 1 Lennart Henrikson and Sofi Alexanderson How much do we know about the population ecology of Margaritifera margaritifera in relation to its conservation? ...........................................................
    [Show full text]